CN1759263A - Molding phenolic resin material for pulley, resinous pulley, and method of using molding resin material - Google Patents
Molding phenolic resin material for pulley, resinous pulley, and method of using molding resin material Download PDFInfo
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- CN1759263A CN1759263A CNA2004800066075A CN200480006607A CN1759263A CN 1759263 A CN1759263 A CN 1759263A CN A2004800066075 A CNA2004800066075 A CN A2004800066075A CN 200480006607 A CN200480006607 A CN 200480006607A CN 1759263 A CN1759263 A CN 1759263A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/48—Pulleys manufactured exclusively or in part of non-metallic material, e.g. plastics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49453—Pulley making
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Abstract
A resin molding material for pulley essentially contains a novolac type phenolic resin, a glass fiber, an inorganic substrate other than the glass fiber, and an elastomer. The novolac type phenolic resin ranging from 25% by weight to 45% by weight, the glass fiber together with the inorganic substrate other than the glass fiber ranging from 45% by weight to 65% by weight, and the elastomer ranging from 0.5% by weight to 5% by weight, relative to the entire molding material are blended. As the inorganic substrate other than the glass fiber, for example, calcium carbonate is used. As the elastomer, for example, NBR is used. The phenolic resin molding material for pulley is molded to obtain a resin pulley.
Description
Technical field
The present invention relates to be used for the using method of phenol resin molding material, resin pulley and the resin molding material of pulley.
Background technique
Compare with metallic sheave, the resin pulley has lightweight, low noise and low-cost advantage, thereby is the common components of industrial machinery or automobile.In the resin pulley, because the size accuracy of the pulley made of phenolic resin is improved and is not yielding, thereby the pulley that the pulley that phenolic resin is made is the thermoplastic resin of representative than with the nylon to be made is more commonly used.
The pulley that phenolic resin is made need possess mechanical strength, size dimensional stability and resistance to sudden heating.The pulley that phenolic resin is made also needs to possess the characteristics that adapt with means of fixation.When with the bolt pulley,, require pulley to have good stress relaxation feature from the angle that prevents that bolt from fluffing.In addition, when the plug-in unit of pulley by introducing pulley inside fixedly the time,, the thermal dilation difference between plug-in unit and the resin ruptures because can causing in that plug-in unit is peripheral.For this reason, need pulley to have good resistance to sudden heating.Therefore, the pulley made of phenolic resin should reach well balanced between desired various high levels of performance.
Routinely, often adopt the fixation method that plug-in unit is imported the pulley inside that phenolic resin makes.At this moment, as mentioned above, need good resistance to sudden heating.For this purpose, glass fibre is sneaked in the phenolic resin that is used for the pulley phenol resin molding material to improve resistance to sudden heating, mechanical strength and size dimensional stability.Patent documentation 1 has been described and phenolic resin, elastomer, inorfil, glass fibre and powdered silica has been mixed and resistance to sudden heating is improved.
Patent documentation 1: Japanese Patent Application Laid-Open 2001-187958.
Summary of the invention
Above-mentioned prior art emphasizes that resistance to sudden heating improves, but also still need improve aspect stress relaxation.Therefore, problem to be solved of the present invention is: in the pulley of being made by phenolic resin, especially make between high-caliber mechanical strength, dimensional stability, stress relaxation and the resistance to sudden heating in can the phenolic resin pulley by bolt to reach well balanced, this resin pulley can be used as the parts in industrial machinery or the automobile.
Design of the present invention is to consider from above-mentioned situation, the object of the present invention is to provide a kind of phenol resin molding material that is used for the resin pulley, this material has excellent mechanical intensity, stress relaxation, resistance to sudden heating, the present invention a kind of this resin forming also is provided and the resin pulley.
The invention provides a kind of phenol resin molding material that is used for pulley, it makes by each composition is mixed, described composition comprises: (A) novolac type phenol resin, (B) glass fibre, (C) inorganic matrix (non-glass fiber) and (D) elastomer, wherein each composition with respect to the ratio of all resins shaping material is: (A) 25wt%-45wt%, (B) are 45wt%-65wt%, (D) 0.5wt%-5wt% with (C) summation.
Because resin molding material of the present invention comprises novolac type phenol resin, thereby is enough to the proof stress relaxation property.Owing to comprise and to guarantee mechanical strength by glass fibre.Because must comprise the inorganic matrix of elastomer and non-glass fiber, its resistance to sudden heating can improve.According to aforementioned proportion these materials are mixed and to make resin molding material realize well balanced between mechanical strength, resistance to sudden heating and the stress relaxation.
In the resin molding material of the present invention, (C) inorganic matrix can comprise calcium carbonate at least.Calcium carbonate as (C) inorganic matrix, can further be improved resistance to sudden heating by calcium carbonate and elastomeric synergy.
In the resin molding material of the present invention, (C) inorganic matrix of non-glass fiber can be made up of calcium carbonate substantially.Term in the specification " inorganic matrix is made up of calcium carbonate substantially " is meant that the ratio that accounts for the inorganic matrix gross weight as calcium carbonate is not less than 90wt%.This will further improve resistance to sudden heating.
In the resin molding material of the present invention, (D) elastomer can comprise diene rubber.Diene rubber of the present invention can be acrylonitrile butadiene rubber.
In the resin molding material of the present invention, (D) elastomer can comprise Pioloform, polyvinyl acetal.Pioloform, polyvinyl acetal of the present invention can be a polyvinylbutyral.
In the resin molding material of the present invention, (C) inorganic matrix can be made up of calcium carbonate substantially, (D) elastomer can be made up of acrylonitrile butadiene rubber substantially, and the ratio that these compositions account for the resin molding material gross weight is: (A) 25wt%-33wt%, (B) 25wt%-35wt%, (C) 25wt%-35wt%, (D) 0.5wt%-2wt%.Add calcium carbonate and will guarantee that stress relaxation improves.Therefore, it is used as main in order to improve the resin molding material of stress relaxation ability.
In the resin molding material of the present invention, (C) inorganic matrix can be made up of calcium carbonate substantially, (D) elastomer can be made up of acrylonitrile butadiene rubber substantially, and the ratio that these compositions account for the resin molding material gross weight is: (A) 33wt%-42wt%, (B) 45wt%-55wt%, (C) 2wt%-12wt%, (D) 1wt%-3wt%.It is used as main in order to improve the resin molding material of thermal cycle.
The present invention also provides a kind of resin pulley that is obtained by the resin molding material moulding.Resin pulley of the present invention has good mechanical strength, resistance to sudden heating and stress relaxation.
The present invention also provides a kind of using method of resin molding material, and this method has adopted this resin molding material in the forming process of resin pulley.Compare with phenol resin molding material with conventional pulley, pulley resin molding material of the present invention is the better shaping material of a kind of mechanical strength, resistance to sudden heating and stress relaxation.This will make it can be used to as in the various pulleys such as industrial machinery part and automobile component.
Description of drawings
With reference to following preferred embodiments and drawings, above-mentioned purpose of the present invention, other purpose, feature and advantage will be clearer and more definite, clear.
The front view of the pulley structure that Fig. 1 makes for the phenolic resin of the embodiment of the invention.
The side view of the pulley that Fig. 2 makes for phenolic resin shown in Figure 1.
Preferred forms of the present invention
The phenol resin molding material that the present invention is used for pulley mainly comprises:
(A) novolac type phenol resin,
(B) glass fibre,
(C) inorganic matrix (non-glass fiber) and
(D) elastomer.
With the phenol resin molding material gross weight that is used for pulley is benchmark, and the content of composition (A) to (D) is: (A) 25wt%-45wt%, (B)+(C) 45wt%-65wt%, (D) 0.5wt%-5wt%.
To be described forming the various compositions that the present invention is used for the phenol resin molding material of pulley below.
Among the present invention, novolac type phenol resin is used as (A) phenolic resin.Adopt the reason of novolac type phenol resin to be that it has high crosslink density, and have good stress relaxation and low-cost characteristics.The addition of novolac type phenol resin accounts for the 25wt%-45wt% of whole shaping material gross weight, is preferably 27wt%-37wt%.If addition is very little, then elasticity increases, but the stretch rate reduction causes resistance to sudden heating to reduce, and owing to the minimizing of resin content makes the formability variation.If addition is too high, then stress relaxation reduction, thermal expansion coefficient increases, and resistance to sudden heating reduces, and causes size to change owing to the moulding contraction increases.The result makes the performance that is difficult to obtain to satisfy the resin pulley.
The present invention is used for the phenol resin molding material of pulley, can contain the curing agent of curing (A) novolac type phenol resin.Curing agent can be the curing agent that is usually used in novolac type phenol resin.The example of curing agent comprises hexa, cresols type phenolic resin etc.When using hexa as curing agent, its content can be for example for accounting for 14 weight portions-20 weight portion of 100 weight portion novolac type phenol resin.
The phenol resin molding material that the present invention is used for pulley must comprise the fibrous inorganic filler.This fibrous inorganic filler does not include organic fiber.The fibrous inorganic filler for example is (B) glass fibre.(B) adding of glass fibre makes molding product obtain mechanical strength.(B) feature of glass fibre for example is but is not defined as fiber diameter 10 μ m-15 μ m, length of staple 1mm-3mm.The result is, can obtain to make the required operability of shaping material, and the required mechanical strength of molding product.
(B) addition of glass fibre can be for example be the 20wt% that accounts for the shaping material gross weight or more, thereby guarantees enough mechanical strengths.Therefore, may improve the intensity of pulley when high load.Can also obtain the pulley that thickness reduces, weight reduces.
The example of (C) of the present invention inorganic matrix includes but not limited to: calcined clay, not calcined clay, wollastonite, French chalk, calcium carbonate, mica and potassium titanate palpus.Wherein, calcium carbonate or wollastonite, especially calcium carbonate are preferably adopted.As (C) inorganic matrix, also can only contain calcium carbonate.Thereby the phenol resin molding material that is used in the resin pulley has good mechanical strength, stress relaxation, more stable resistance to sudden heating.When adopting calcium carbonate, its medium grain size for example is 0.5 μ m-20 μ m, is preferably 1 μ m-10 μ m.
(C) addition of inorganic matrix can preferably be not less than 3wt%, thereby guarantee that the balance between mechanical strength, stress relaxation and the resistance to sudden heating improves for example for being not less than the 1wt% of whole shaping material gross weight.Addition can be for the 50wt% of whole shaping material gross weight, as is no more than 50wt%, preferably is no more than 40wt%, thereby guarantees enough mechanical strengths.
(B) glass fibre+(C) addition of inorganic matrix for example can preferably be not less than 50wt%, thereby guarantee enough stress relaxation for being not less than 45wt% with respect to whole shaping material gross weight, and prevents the bolt looseness of fixed pulley.Thereby the increase that can also prevent thermal expansion coefficient has improved resistance to sudden heating.
(B) addition of the inorganic matrix of glass fibre+(C) can preferably be not less than 62wt% for example for being not less than 65wt% with respect to whole shaping material gross weight, thereby but elasticity is reduced and increases stretch rate.Therefore, guarantee enough flintinesses, and improved resistance to sudden heating.Also improved the operability of shaping material in kneading process.
(D) elastomeric adding can improve resistance to sudden heating.Elastomeric kind is not done concrete qualification, and elastomeric example can comprise diene rubber, as NBR, chloroprene rubber and the styrene butadiene ribber of acrylonitrile butadiene rubber (NBR), modification; Non-polydiene is as ethylene propylene rubber; Pioloform, polyvinyl acetal is as polyvinylbutyral (following finger " PVB "); Vinyl carboxylates is as vinyl acetate; Or the like, above-mentioned substance can use separately also can mix use.Wherein, preferably use nitrile butadiene rubber, as NBR and carboxyl acid modified NBR.These materials and phenolic resin have good compatibility.Therefore, adopt these materials that elastomer is dispersed in the phenolic resin, thereby realize good flintiness, and further improve the resistance to sudden heating of resin molding material.
Utilize nitrile butadiene rubber, can further improve balance between mechanical strength, resistance to sudden heating and the stress relaxation as NBR and carboxyl acid modified NBR or PVB and novolac type phenol resin.
(D) elastomeric addition is a key factor that obtains the improved resin molding material of balance between mechanical strength, resistance to sudden heating and the stress relaxation.The elastomer addition can preferably be not less than 1wt% for being not less than 0.5wt%, thereby but guarantee enough stretch rates with respect to whole shaping material gross weight.Therefore, may when guaranteeing enough flintinesses, improve resistance to sudden heating.
(D) elastomeric addition can be no more than the 5wt% of whole shaping material gross weight, preferably is no more than 3wt%.This will prevent stress relaxation and mechanical strength variation, lower thermal expansion coefficient, thereby improve resistance to sudden heating.
In the present invention, also can add other bulking agent except that above-mentioned substance in case of necessity.
The composition of phenol resin molding material of the present invention can be adjusted according to concrete application.For example, mainly be followingly to consist of example for the resin molding material that improves stress relaxation.Each composition addition of this moment is based on the gross weight of phenol resin molding material.
Novolac type phenol resin: 25wt%-33wt%,
Hexa: 3wt%-7wt%,
Glass fibre: 25wt%-35wt%,
Calcium carbonate: 25wt%-35wt%,
NBR：0.5wt％-2wt％。
Mainly be then can followingly consist of example for the resin molding material that improves thermal cycle.Each composition addition of this moment is based on the gross weight of phenol resin molding material.
Novolac type phenol resin: 33wt%-42wt%,
Hexa: 3wt%-7wt%,
Glass fibre: 45wt%-55wt%,
Calcium carbonate: 2wt%-12wt%,
NBR：1wt％-3wt％。
Utilize such mixed proportion, further improve thermal cycle by the synergy of glass fibre and acrylonitrile butadiene rubber.
Phenol resin molding material of the present invention makes by the known technology of related domain.For example; except that mentioned component; can add in case of necessity and solidify aid, releasing agent, pigment, coupling agent etc.; and evenly mix; utilize single dispersion kneader such as roller then, be total to means such as dispersion kneader or double screw extruder; or utilize being combined under the heating of roller and other dispersion kneader to carry out melt kneading, granulating or milling obtains target material.
Below will the pulley that phenolic resin of the present invention makes be described.Resin pulley of the present invention utilizes aforementioned shaping material to make through overmolding.
Fig. 1 and Fig. 2 are examples of the pulley structure that makes of phenolic resin of the present invention.The front view of the pulley that Fig. 1 makes for phenolic resin.Fig. 2 is the side view of the pulley that makes of phenolic resin shown in Figure 1.In the pulley that phenolic resin illustrated in figures 1 and 2 makes, insert metalwork 2 and be mounted in the pulley.Pulley 1 is by wherein being equipped with the build-up member that inserts metalwork 2, having the outer cylindrical parts of V-type groove and being connected and fixed parts and the beam of outer cylindrical parts being constituted.
The pulley that phenolic resin of the present invention makes normally utilizes the shaping material of aforementioned formula, wherein puts into a metal insert, makes by compression molding, transfer molding, molding and forming or injection-compression molding.The condition of molding that carries out moulding is: when molding was contracted in employing, mold temperature was 170-190 ℃, and briquetting pressure is 100-150kg/cm
2, be 1-5 minute curing time.Yet condition of molding is not limited thereto.
Make owing to pulley of the present invention utilizes aforementioned phenol resin molding material, thereby between mechanical strength, resistance to sudden heating and stress relaxation, reached well balanced.
Embodiment
The present invention will be described by embodiment and comparing embodiment.Formula mixture shown in table 1 and the table 2 is mediated with the hot-rolling of different rotation rates, made sheet material and cooling then.These sheet materials are crushed into the granular phenol resin molding material.
Blending constituent used in embodiment and the comparing embodiment is as described below.
(1) according to following formulation cresols type phenolic resin.
With phenol (P) and formaldehyde (F) in molar ratio (F/P) be added at 1: 7 in the reaction bulb that has reflux condensing tube, stirrer, heating equipment and vacuum extractor, add zinc acetate then, add the zinc acetate of 0.5 weight portion in per 100 weight portion phenol.The pH value to 5.5 of conditioned reaction system refluxed 3 hours.Be that 100Torr, temperature are distillation reaction liquid 2 hours under 100 ℃ the condition in degree of vacuum then, to remove unreacted phenol.Then, making and being reflected at degree of vacuum is that 100Torr, temperature are reaction 1 hour under 115 ℃ the condition, obtains solid-state dimethyl ether type cresols type phenolic resin, and number-average molecular weight is 800.
(2) novolac type phenol resin: number-average molecular weight is 700 (A-1082, Sumitomo BakeliteCompany Limited makes).
(3) hexa: Mitsubishi Gas Chemical Company Inc. makes.
(4) glass fibre: the broken group of glass fibre, length of staple is 3mm, fiber diameter is 11 μ m, Nippon Sheet Glass Co., Ltd. makes.
(5) calcium carbonate: Mean particle diameter is the SS 80 of 2.6 μ m, and Nitto Funka Kogyo K.K. makes.
(6) clay: Insulite , Mizusawa Industrial Chemicals, Ltd. makes.
(7) solidify aid: magnesium oxide.
(8) releasing agent: calcium stearate.
(9) colorant: carbon black.
(10) PVB:S-LEC BX-5, Sekisui Chemical Co., Ltd. makes.
(11) NBR:PNC-38, JSR Corporation makes.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | ||
| Prescription (wt%) | Novolac type phenol resin | 31 | 30 | 29 | 31 | 31 | 35 |
| Hexa | 5 | 5 | 5 | 5 | 5 | 5 | |
| Glass fibre | 30 | 27 | 31 | 50 | 30 | 50 | |
| Calcium carbonate | 30 | 33 | 31 | 10 | - | 5 | |
| Clay | - | - | - | - | 30 | - | |
| NBR | 1 | 2 | - | 1 | 1 | 2 | |
| PVB | - | - | 1 | - | - | - | |
| Solidify aid | 1 | 1 | 1 | 1 | 1 | 1 | |
| Colorant | 1 | 1 | 1 | 1 | 1 | 1 | |
| Releasing agent | 1 | 1 | 1 | 1 | 1 | 1 | |
| Performance | Flexural strength (MPa) | 145 | 140 | 140 | 160 | 135 | 180 |
| Coefficient of linear expansion (ppm) | 24 | 25 | 24 | 22 | 24 | 24 | |
| Stress relaxation (%) | 85.0 | 82.0 | 85.0 | 84.0 | 87.0 | 82.0 | |
| Thermal shock | 150 | 175 | 150 | 200 | 50 | 200 |
Table 2
| Comparing embodiment 1 | Comparing embodiment 2 | Comparing embodiment 3 | Comparing embodiment 4 | ||
| Prescription (wt%) | Cresols type phenolic resin | 36 | - | - | - |
| Novolac type phenol resin | - | 31 | 26 | 47 | |
| Hexa | - | 5 | 4 | 8 | |
| Glass fibre | 30 | 30 | 30 | 20 | |
| Calcium carbonate | 30 | 30 | 30 | 20 | |
| Clay | - | - | - | - | |
| NBR | 1 | - | 7 | 2 | |
| PVB | - | - | - | - | |
| Solidify aid | 1 | 1 | 1 | 1 | |
| Colorant | 1 | 1 | 1 | 1 | |
| Releasing agent | 1 | 1 | 1 | 1 | |
| Performance | Flexural strength (MPa) | 140 | 150 | 110 | 130 |
| Coefficient of linear expansion (ppm) | 28 | 24 | 35 | 45 | |
| Stress relaxation (%) | 68.0 | 86.0 | 70.0 | 65.0 | |
| Thermal shock | 200＜ | 25 | 100 | 100 |
The forming method and the evaluating method of test sample book that is used for assess performance is as described below.(i) test of flexural strength is according to the regulation of JIS K6911.
(ii) cold-resistant thermal shock: with diameter is that 50mm, thickness are that the disk of 5mm is a metal insert, has two place's otch on it, and described otch covers with resin, and the thickness of resin is 2mm, is shaped to test specimens thus.This test specimens is stood thermal cycle test 200 take turns, each circulation is the temperature variation of experience 30 minutes from-40 ℃ to 140 ℃.Whether per 25 circular tests crackle once occurs.The crackle number sees Table 1.
(iii) stress relaxation: carry out the stress relaxation property testing according to ASTE F38B.Test specimens is carried out under the clamp pressure of 100 ℃ temperature, 11.8MPa, the percentage of measuring rest segment in 100 hours after the test beginning.
(iv) thermal expansion coefficient: measure 80 ℃ to 120 ℃ thermal linear expansion coefficient according to TMA.
One of embodiment 1-6 is any all is shaping material, and wherein novolac type phenol resin, glass fibre, inorganic matrix and elastomer mix with prearranging quatity.The result of table 1 and table 2 shows that the molding product that utilizes shaping material to make through overmolding shows and has realized well balancedly between mechanical strength, resistance to sudden heating and the stress relaxation in higher level that this is that the resin pulley is needed.
On the contrary, comparing embodiment 1 is owing to used cresols type phenolic resin, although resistance to sudden heating is good, stress relaxation is very low.Comparing embodiment 2 is owing to lack elastomer, poor thermal shock resistance.Comparing embodiment 3 is because elastomer content is big, and stress relaxation is poor.Elastomeric addition is very important for the good resin molding material of balance between acquisition mechanical strength, resistance to sudden heating and the stress relaxation, and addition is excessive and unfavorable.Preferably, elastomeric addition is no more than 5wt%, and it is more stable that addition is no more than the performance that 2wt% will make resin molding material present.Comparing embodiment 4 is owing to the content height of resinous principle causes stress relaxation poor.
Claims (9)
1. phenol resin molding material that is used for pulley that each composition makes according to prescription, described composition comprises:
(A) novolac type phenol resin,
(B) glass fibre,
(C) inorganic matrix (non-glass fiber) and
(D) elastomer,
Wherein, each component ratio based on whole resin molding material is:
(A)25wt％-45wt％；
(B)+(C) 45wt%-65wt%, and
(D)0.5wt％-5wt％。
2. resin molding material according to claim 1, wherein (C) inorganic matrix comprises calcium carbonate at least.
3. resin molding material according to claim 1, wherein (C) inorganic matrix is made of calcium carbonate substantially.
4. resin molding material according to claim 1, wherein (D) elastomer comprises diene rubber.
5. resin molding material according to claim 1, wherein (D) elastomer comprises Pioloform, polyvinyl acetal.
6. resin molding material according to claim 1, wherein
(C) inorganic matrix is made of calcium carbonate substantially,
(D) elastomer mainly comprises acrylonitrile butadiene rubber, and
Based on whole resin molding material gross weight, the ratio of composition (A) to (D) is:
(A)25wt％-33wt％；
(B)25wt％-35wt％；
(C) 25wt%-35wt%; And
(D)0.5wt％-2wt％。
7. resin molding material according to claim 1, wherein
(C) inorganic matrix is made of calcium carbonate substantially,
(D) elastomer is made of acrylonitrile butadiene rubber substantially, and
Based on the resin molding material gross weight, the ratio of composition (A) to (D) is:
(A)33wt％-42wt％；
(B)45wt％-55wt％；
(C) 2wt%-12wt%; And
(D)1wt％-3wt％。
8. the resin pulley that makes through overmolding by the described resin molding material of claim 1.
9. the using method of resin molding material, described method comprise and adopt the described resin molding material of claim 1 to make the resin pulley through overmolding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003064863 | 2003-03-11 | ||
| JP064863/2003 | 2003-03-11 |
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| Publication Number | Publication Date |
|---|---|
| CN1759263A true CN1759263A (en) | 2006-04-12 |
| CN100497471C CN100497471C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004800066075A Expired - Fee Related CN100497471C (en) | 2003-03-11 | 2004-03-10 | Molding phenolic resin material for pulley, resin pulley, and method of using molding resin material |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7569633B2 (en) |
| EP (1) | EP1602860B1 (en) |
| JP (1) | JP4569469B2 (en) |
| KR (1) | KR101075342B1 (en) |
| CN (1) | CN100497471C (en) |
| DE (1) | DE602004021093D1 (en) |
| ES (1) | ES2326030T3 (en) |
| WO (1) | WO2004081415A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108137901A (en) * | 2015-10-29 | 2018-06-08 | 住友电木株式会社 | phenolic resin molding material |
| CN108350249A (en) * | 2015-10-29 | 2018-07-31 | 株式会社电装 | Fuel impeller of pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4788962B2 (en) * | 2006-05-24 | 2011-10-05 | 株式会社ジェイテクト | Resin pulley |
| US10326323B2 (en) | 2015-12-11 | 2019-06-18 | Whirlpool Corporation | Multi-component rotor for an electric motor of an appliance |
| US10704180B2 (en) | 2016-09-22 | 2020-07-07 | Whirlpool Corporation | Reinforcing cap for a tub rear wall of an appliance |
| US10693336B2 (en) | 2017-06-02 | 2020-06-23 | Whirlpool Corporation | Winding configuration electric motor |
| KR101839310B1 (en) * | 2017-12-07 | 2018-04-27 | 김영동 | Material for blocking heat conduction and a fire door |
| DE102019202143A1 (en) * | 2019-02-18 | 2020-08-20 | Aktiebolaget Skf | Pulley device especially for a tension pulley or a pulley |
| US11333235B2 (en) * | 2019-06-14 | 2022-05-17 | NHI Mechanical Motion, LLC | Hybrid drive component |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05320496A (en) * | 1992-05-22 | 1993-12-03 | Sumitomo Chem Co Ltd | Resin composition |
| US5336723A (en) | 1992-09-30 | 1994-08-09 | Sumitomo Bakelite Company Limited | Phenolic resin molding materials |
| US5405299A (en) * | 1992-12-29 | 1995-04-11 | Bridgestone Corporation | Toothed belt and toothed belt-adapted pulley |
| JPH08159244A (en) * | 1994-12-07 | 1996-06-21 | Sumitomo Bakelite Co Ltd | Resin pulley |
| JPH08198916A (en) | 1995-01-30 | 1996-08-06 | Hitachi Chem Co Ltd | Production of phenol adduct diene-based polymer, production of novolak resin and phenolic resin molding material using the same novolak resin |
| JP3192082B2 (en) | 1996-02-14 | 2001-07-23 | 光洋精工株式会社 | Resin pulley |
| US6306507B1 (en) * | 1999-05-18 | 2001-10-23 | General Electric Company | Thermally stable polymers, method of preparation, and articles made therefrom |
| JP3667625B2 (en) * | 2000-11-13 | 2005-07-06 | 住友ベークライト株式会社 | Phenolic resin molding material for automobile pulley and phenolic resin pulley for automobile |
| JP3763740B2 (en) | 2000-12-28 | 2006-04-05 | 株式会社ジェイテクト | Resin pulley |
| JP3626093B2 (en) | 2000-12-28 | 2005-03-02 | 光洋精工株式会社 | Resin pulley |
| JP4638062B2 (en) * | 2001-01-19 | 2011-02-23 | 株式会社豊田自動織機 | Phenolic resin composite material |
| JP2002212388A (en) | 2001-01-23 | 2002-07-31 | Sumitomo Bakelite Co Ltd | Phenolic resin molding material |
-
2004
- 2004-03-10 US US10/548,765 patent/US7569633B2/en not_active Expired - Fee Related
- 2004-03-10 CN CNB2004800066075A patent/CN100497471C/en not_active Expired - Fee Related
- 2004-03-10 ES ES04719144T patent/ES2326030T3/en not_active Expired - Lifetime
- 2004-03-10 JP JP2005503544A patent/JP4569469B2/en not_active Expired - Fee Related
- 2004-03-10 KR KR1020057016809A patent/KR101075342B1/en not_active IP Right Cessation
- 2004-03-10 DE DE602004021093T patent/DE602004021093D1/en not_active Expired - Lifetime
- 2004-03-10 WO PCT/JP2004/003103 patent/WO2004081415A1/en active Application Filing
- 2004-03-10 EP EP04719144A patent/EP1602860B1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108137901A (en) * | 2015-10-29 | 2018-06-08 | 住友电木株式会社 | phenolic resin molding material |
| CN108350249A (en) * | 2015-10-29 | 2018-07-31 | 株式会社电装 | Fuel impeller of pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4569469B2 (en) | 2010-10-27 |
| EP1602860B1 (en) | 2009-05-13 |
| WO2004081415A1 (en) | 2004-09-23 |
| JPWO2004081415A1 (en) | 2006-06-15 |
| DE602004021093D1 (en) | 2009-06-25 |
| EP1602860A1 (en) | 2005-12-07 |
| KR101075342B1 (en) | 2011-10-19 |
| ES2326030T3 (en) | 2009-09-29 |
| US20060167166A1 (en) | 2006-07-27 |
| CN100497471C (en) | 2009-06-10 |
| KR20050107613A (en) | 2005-11-14 |
| US7569633B2 (en) | 2009-08-04 |
| EP1602860A4 (en) | 2006-05-17 |
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